Tweak unicode escape diagnostics

[estebank]

No description provided.

[rust-highfive]

r? @alexcrichton

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[estebank]

r? @zackmdavis

[zackmdavis]

Wait ... the .rs file source line said println!("\x7B}\u8 {", 1); (with backslashes), why are there forward slashes in the output here?

[estebank]

@zackmdavis can't find the PR, but UI tests normalize backslashes to forward slashes for Windows' sake to avoid further differences across platforms when running tests. It always makes me recoil for a second until I remember that that's a thing.

[zackmdavis]

@bors r+

[bors]

📌 Commit 30961c9 has been approved by zackmdavis

[bors]

⌛ Testing commit 30961c9 with merge 573d6fae1133ce2bf1a18e84c1088665a5e6c6b9...

[bors]

💔 Test failed - status-travis

[rust-highfive]

The job x86_64-gnu-aux of your PR failed on Travis (raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log.

[01:44:51] [TIMING] ToolBuild { compiler: Compiler { stage: 0, host: "x86_64-unknown-linux-gnu" }, target: "x86_64-unknown-linux-gnu", tool: "cargotest", path: "src/tools/cargotest", mode: ToolBootstrap, is_optional_tool: false, source_type: InTree, extra_features: [] } -- 1.090
[01:44:51] testing https://github.com/servo/webrender
[01:44:51] Initialized empty Git repository in /checkout/obj/build/ct/webrender/.git/
[01:44:51] fatal: Could not parse object '57250b2b8fa63934f80e5376a29f7dcb3f759ad6'.
[01:45:11] fatal: unable to access 'https://github.com/servo/webrender/': Could not resolve host: github.com
[01:45:11] thread 'main' panicked at 'assertion failed: status.success()', src/tools/cargotest/main.rs:114:13
[01:45:11] 
[01:45:11] 
[01:45:11] command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-tools-bin/cargotest" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo" "/checkout/obj/build/ct"
[01:45:11] expected success, got: exit code: 101
[01:45:11] expected success, got: exit code: 101
[01:45:11] 
[01:45:11] 
[01:45:11] failed to run: /checkout/obj/build/bootstrap/debug/bootstrap test src/test/pretty src/test/run-pass/pretty src/test/run-fail/pretty src/test/run-pass-valgrind/pretty src/test/run-pass-fulldeps/pretty src/test/run-fail-fulldeps/pretty src/tools/cargo src/tools/cargotest
[01:45:11] Build completed unsuccessfully in 0:32:36
[01:45:11] make: *** [check-aux] Error 1
[01:45:11] Makefile:50: recipe for target 'check-aux' failed
The command "stamp sh -x -c "$RUN_SCRIPT"" exited with 2.
travis_time:start:0d4c545e
$ date && (curl -fs --head https://google.com | grep ^Date: | sed 's/Date: //g' || true)
Tue Jan  1 06:33:00 UTC 2019
---
travis_time:end:01e0a2d0:start=1546324382719902488,finish=1546324382728210395,duration=8307907
travis_fold:end:after_failure.3
travis_fold:start:after_failure.4
travis_time:start:35cfe1fa
$ ln -s . checkout && for CORE in obj/cores/core.*; do EXE=$(echo $CORE | sed 's|obj/cores/core\.[0-9]*\.!checkout!\(.*\)|\1|;y|!|/|'); if [ -f "$EXE" ]; then printf travis_fold":start:crashlog\n\033[31;1m%s\033[0m\n" "$CORE"; gdb --batch -q -c "$CORE" "$EXE" -iex 'set auto-load off' -iex 'dir src/' -iex 'set sysroot .' -ex bt -ex q; echo travis_fold":"end:crashlog; fi; done || true
travis_fold:start:crashlog
obj/cores/core.3732.!checkout!obj!build!x86_64-unknown-linux-gnu!stage2!bin!rustc
[New LWP 3738]
[New LWP 3732]
warning: Could not load shared library symbols for 8 libraries, e.g. /lib/x86_64-linux-gnu/libc.so.6.
Use the "info sharedlibrary" command to see the complete listing.
Do you need "set solib-search-path" or "set sysroot"?
Core was generated by `rustc --crate-name foo src/lib.rs --color never --crate-type lib --emit=dep-inf'.
Program terminated with signal SIGABRT, Aborted.
#0  0x00007f19d15de428 in ?? ()
#0  0x00007f19d15de428 in ?? ()
#1  0x00007f19d15e002a in ?? ()
#2  0x0000000000000020 in ?? ()
#3  0x0000000000000000 in ?? ()
travis_time:end:35cfe1fa:start=1546324382736187809,finish=1546324384191833083,duration=1455645274
travis_fold:end:after_failure.4
travis_fold:start:after_failure.5
travis_time:start:14dc15b8
travis_time:start:14dc15b8
$ cat ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers || true
cat: ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers: No such file or directory
travis_fold:end:after_failure.5
travis_fold:start:after_failure.6
travis_time:start:01360c97
$ dmesg | grep -i kill

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN. (Feature Requests)

[zackmdavis]

[01:45:11] fatal: unable to access 'https://github.com/servo/webrender/': Could not resolve host: github.com

Sounds fake.

@bors retry

[bors]

⌛ Testing commit 30961c9 with merge 7a2779a...

[bors]

☀️ Test successful - status-appveyor, status-travis
Approved by: zackmdavis
Pushing 7a2779a to master...